[Answer] in Illinois the maximum speed limit on interstates tollways freeways and some four-lane highways is ________ except where otherwise posted.

Answer: 70mph
in Illinois the maximum speed limit on interstates tollways freeways and some four-lane highways is ________ except where otherwise posted.
On March 22 2017 the speed limit on a four -lane divided stretch of US 20 between Idaho Falls and Ashton was raised from 65 mph (105 km/h) to 70 mph (110 km/h). Illinois . Interstate Highways in Illinois are usually posted with both minimum and maximum speed limits except in some urban areas particularly Chicago. The standard speed limit is …
The study concluded the increase of speed limits not only increases the speed of vehicles but can also generate additional deaths: “A 5 mph increase in the maximum state speed limit was associated with an 8.5% increase in fatality rates on interstates / freeways and a 2.8% increase on other roads.”
Speed limits in the United States – Wikipedia
Speed limits in the United States – Wikipedia
National Maximum Speed Law – Wikipedia
Speed limits in the United States – Wikipedia
Being freeways Interstate Highways usually have the highest speed limits in a given area. Speed limits are determined by individual states. From 1975 to 1986 the maximum speed limit on any highway in the United States was 55 miles per hour (90 km/h) in accordance with federal law.
The National Maximum Speed Limit (NMSL) was a provision of the federal government of the United States 1974 Emergency Highway Energy Conservation Act that effectively prohibited speed limits higher than 55 miles per hour (89 km/h). It was drafted in response to oil price spikes and supply disruptions during the 1973 oil crisis and remained the law until 1995.
In the province of Quebec it is illegal to travel in the left lane when not passing when the speed limit is over 80 km/h (50 mph). In the province of Ontario unless otherwise posted the left l…

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